A computer worm is the family member of malware and that spreads the copies of itself from computer to computer. This Worms can active and do the jobs itself without any human interaction and do not need to attach it with any software program in order to cause damage.

How Does it work?

Worms can be transmitted from the software vulnerabilities where some Worms could arrive as an attachment in spam emails or instant messages. When the file is open you could find a link to a malicious website or then automatically download the Worms. After that, the installation process started and it worked silently and the machine without the user’s knowledge.

The Worms can modify and delete the files and even it can inject the additional malicious software onto a computer. Sometimes we found that that the computer worm’s purpose is only to make copies of itself over and over which can block the size and speed of the hard drive space or bandwidth and create overloading tasks in a shared network. Some Worms can steal data and install a backdoor and allow hackers to gain the control of entire system setting.

Famous Computer Worm

Around July 2010, The first computer worm was found and used as the cyber weapon and discovered by the security researcher after a long string of incidents in Iran.

 The name of the worm is “Stuxnet”. This attracts the interest of high profile specialists around the world. After finding the details about this worm it comes that the “Worm” is designed to attack an Iranian power plant with the ultimate goal of sabotaging nuclear weapon production. But at last, it failed and the vulnerabilities are found.

How do you know about the Computer Worm in your system?

If you feel that your system is infected by the computer worm, run a scan immediately with an anti-virus. Even if the scan is not useful and the result is negative and then follow some steps below :

1. Keep an eye on your hard drive space: The worm can utilize the free space of your computer.
2. If you find some files are missing: Computer worm can delete and replace files on a computer.
3. Monitor the performance and speed: If you find lagging and crashing issues in the computer even the processing speed feels slow.

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After discussing the new propagation module you might be in deep thought about what is new in this? This malware is the same as general malware functionality in that it steals sensitive information, which can contribute backdoor access and later used by several cyber attacker’s groups to disseminate different malware.

The First discovered in 2016 as per news circulate but maybe it comes earlier but the security system of the machine did not detect it well. This program basically runs in the background and starts with accessing the data and using current activities.

Once this malware enters your Machine then it gradually starts the activities to download various modules to perform different malicious tasks first in the machine and then after entire networks.

How TrickBot Modules spread?

The TrickBot Module is specially developed to steal sensitive data and then perform different malicious infections. It is totally different from the other malware in the spreading and activities performed in the background because it uses a different binary to perform the particular tasks during the activities it performs.

The first work TrickBot does is that it saves the windows executable malicious file in the hard drive which is known as the “TrickBot Loader”

Let’s take an example of Windows 7 and 10 because lots of users are very familiar with it.

If you are Windows 7, users can see the artifacts associated modules that are saved in the disk but in case of windows 10, the TrickBot modules can only be found in system memory.

Have you heard some of the ransomware cases in the last year, as sources say the TrickBot and ransomware operators have joined hands and do the work together to compromise the network so that ransomware can complete the work.

In research it was also mentioned, “ The artifacts which we discuss in windows 7 point are encrypted binaries and later during the operation, the encrypted TrickBot get decrypted and operated whole memories as TrickBot.”

How is the module used by TrickBot?

• Tab Module
• Mworm Module
• Mshare module

You can see the below chart on how to exploit the SMB vulnerabilities in the domain controller. The whole chart shows the flow and spread of the TrickBot modules.

Finally, The “mworm” is no longer usable and everyone is using “nworm”.The worm module activates the infections and spreads in the memory of the domain controller which are more complex and remain undetectable which is executed in background without any issue.

In 2020, The TrickBot is introduced with the new module “Nworm” propagation module and TrickBot stopped using “Mworm” module in the same environment.

A most important point the new module,”Nworm does not appear until the TrickBot infection don’t harm the AD atmosphere with DC as similar to the “Mworm”

If you have any suggestion let me know in the comment box. Thank you!!

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